Answer on Astronomy | Astrophysics Question for Lia

2015-09-23T02:52:42-0400

Question #54930

Problem: 3. Our neighbor galaxy, Andromeda, has a luminosity (intrinsic brightness)3 times as bright as the Luminosity of our Milky Way galaxy, LAndromeda = 3LMW, andis at a distance of dAndromeda = 0.7 Mpc. The flux we observe from the Andromedagalaxy (apparent brightness) is 10,000 times brighter than the flux observed from a distantquasar, fAndromeda = 104fquasar. This quasar has a luminosity that is 1000 times theluminosity of our Milky Way galaxy, Lquasar = 103LMW. What is the distance d to thequasar? (4 points)